Sound-regulator for audible signals



W. KLINE.

SOUND REGULATOR FOR AUDIBLE SIGNALS- APPLICATION FILED FEB. 9, 1918.

Patented June 8, 1920.

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I 1a M v Gum n89 UNITED sTATss WILILAM KLINE, 0F wAYnnsBoiao, VIRGI A,ASSIGNOR or ONE-HALF To WInLiAM 1 J. MOORE, or WASHINGTON, .nrsrnrcr orGOLU1VIBIA.-

SOUND-RE LATOR; FOR AUDIBLE sicrlxmiis. H

Application filed February 9, 1918. Serial N s-. 216,160.

To all whom it, may concern: Be it known that I, WILLIAM KnINE, acitizen of the United States, residing at WVaynesboro, in the county ofAugusta and State of Vir inia, have invented certain new and usefulmprovements in Sound-Regulators for Audible Signals, of which the folvlowing is a specification.

The present invention relates to mprovements in sound regulators foraudible signals and particularly constructed and adapted for regulatingor modulating the intensity of the sound of a telephone call bell. i e

It is generally the object of my invention to produce a sound regulatingdev ce simple in point of construction and operation.

The more particular object is the construction of a device of thecharacter indi-- cated which admits of readyregulation to produceuniform sound effects ofdesired pitch or quality. I

With this end in view, the nvention consists principally in theprovision of means on a hammer orother element for striking a soundproducing device for varlously modulating or otherwise difi'erentlyaffect ing the sound of the sound producing device. This and otherstructural characterlstlcs forming a part of the invention will behereafter more fully described and particularly pointed out in theappended claims.

In the drawings, in which similar reference characters indicate likeparts.

Figure 1 is a top plan view of a telephone 'call bell box with a part ofmy improve' ment; 7

Fig. 2 is a vertical sectional view online IIII in Fig. 1; 1

Fig. 3 is a verticalsectional view on line IIIIII in Fig. 2 and Fig. 4 aperspective view of invention detached from the surrounding parts.

Referring to Figs. 1,2 and 3, 10 is the usual call bell box which housesthe well known electro-magnet 11, the specific construction of which isnot'material for the purposes of my invention. p

12, 12 represents the usual form of bells mounted on the top of the box10. Through a slot 13 in the top of thebox extends a hammer centrallylocated between the bells as is customary. The head 14 of the hammer isprovided with a plurality of striking faces 15, 16 and 17 of differenttone producing quality. These different faces may be conveniently formedby boring'out portions at dlametrically opposite sections of the head14, and inserting pieces of different material, such as wood, felt,leather, etc. In

Fig. 4, the inserts l6 and 17 represent for the sake of illustration,pieces of wood and felt, respectively, while the portion 15 is ametallic surface. WVhileI prefer to form the striking faces in themanner indicated,

there is considerable latitude in carrying out the idea involved.

From the head 14 extends a stem 18 downwardly into a sleeve 20 formedtoembrace the stem. The sleeve is preferably provided with lateral flanges21, 21 parallel in proximity to one another, and by means of screws 22and nuts 23 these fianges may be clamped together to'any desired extent,to 1 7 fri'ctionally embrace and tightly engage the stem18." I

The lower end of the sleeve 20 is designed lower portion of sleeve 20.From this con; struction and arrangement said stem 18 with its headorhammer section 14, not only, is

pivoted to have a vibratory 'movement but It is merely necessaryto outearsnr emee Patented Ja os, 1920. l

is also adapted to be rotated through-a small angle.

Intermediate its ends a block 28 may be inserted-in this slot andconnected to the stem 18. The block 28 is so shaped that the stem 18 maybe turned thesleeve may be I slotted as indicated bythe numeral 27, and

through a limited angle relatively to the sleeve 20, bytheouterprojections 25 of block 28 striking against the opposite and outsidefaces of the lateral flanges 21 adj acent to the slot 27 in the-sleeve20.

From the head 14 extends upwardly a stem portion 30; To this stemportion may be connected by screw threads or otherwise, a knurled head31 provided with a pointer 32.

' A housing 33 of sheet metal or other suitable material is attached tothe top of the I box 10, as by screws 34. This housing has a slot' 35through which the head 31 passes and on its outer surface the housingcarries the indicia S, M, and L, to cooperate with I 20 faces 17strikethe'bells 12 and a soft sound the pointer 32 to indicate theposition of the hammer relatively to the sleeve 20 we thereby theositionof the striking surfaces 15, 16 and 1 relatively to the bells 12.A

hood 37 is hinged on 'thehousing 33 and has fingers'38 engaging theopposite side of the housingtohold" and supportthe hood in closedposition and thereby protect the head 31 and pointer 32 from injuryordisturbing their adjusted position.

The operation is-obvious. When it is desiredto obtain aloud ring, thehead 31 isturned until thepointer 32 stands over L.

In thisposition the opposite metallic faces l5-are in striking positionadjacent bells 12. By turning the head until the pointer 32 stands overthe'letter M, the wooden faces 16, are brought into striking positionand a medium sound is produced, and When the pointer 32 stands over theletter S, the. felt is roduced, v s

' Vhile in the different striking faces are used, it is obvious thatalarger number may be used. Wood, felt and leather are merely referredto as. someof the materials available forvthe pur' .poses- .of the.invention; Other materials may be employed With equally good effect.- I

Numerous changes may, bemade Within the scope of the disclosure. What isshown and described is merely for the purpose of 7 illustrating. thebroader aspects of the in- I vention.

What I claim is 1. A, sound regulatorfor audible signals comprising avibrating sound producing device, a combined pivotally and rotatably.

mounted-stem provided With a hammer havinga plurality of striking,surfaces of different tone-producing quality, means for varying. the.rotated position of the stem to bringany one of said surfaces ofthehammer intostriking engagement With the sound. 45

producing device.

2. Asound regulator for audible signals comprising a vibrating soundproducing device,-a combined pivotally and 'rotatably' mountedstemprovided with a hammer having.- a plurality of striking surfaces of different" tone producing quality, means at the end of the stem for tuningthe stem and hammer about itspivot and means adjacent said turning meansfor indicating the posit1on of the hammer.

3. A sound regulator for audible'si'gnals comprising a vibrating soundproducing'device, a combined pivotally and 'rotatably mounted stemprovided with a hammer having a plurality of striking surfaces ofdifstructure described three end of the stem for turningthe-st'em" aboutits pivot, means adjacent said stem for indicating the position of thestem and hammer U V and means for protecting the said last men'- tionedparts.

4. Asound regulator for audible signals" comprising. a vibrating soundproducing device, a combined pivotally and rotatably mounted stemprovidedwithwa hammer'having applurality of.,striking5surfaces ofdifferent tone producing quality, means at the 1ferenttone.producingjquality, means at theend of" the stem for turningthe stem about its pivot,fapointer; adjacent said turning means,.anindicator plate supported to co operate Withthe pointer to indicate theposition of the stem and-hammer and a remov-j able hood .forprotecting.all said last menmeans for frictionally uniting. .the-said stnb 1 andstem: a

6. A soundiregulator for audible: signalscomprising a vibratingsoundproducing device, a. relatively: short stub; means forvie brating saidstub, a stem, a hammerhaving a-plura-lity of. striking :fiLCQSz of.different tone producing quality fixedto', said stem, means; forfrictionallyuniting said stub, and 7 Stem,

means for turningthe stem and hammer relatively'to-said stub,- and meansfor limitingksuch' movement of said .stem.--

7 A soundreglllator'for audible s'ignals comprising. a vibrating soundproducing device, a relatively short stub, means for vibrating saidstub, ahammer havingfa plurality of st'r-ilring'faces of different tone.producing quality, a sleeve: frictionally; embracing. the.- abutting.endsof the .ihammer and r the. stub, and means-for varying.thefrictional engagement between the sleeve and each; of theembracedpartsi'; 1

8. A sound regulator for audible. signalscomprising avibratingsoundproducing device, a relatively short: stub-means for vibratingsaid'stub,.a hammer haying aplurality of striking facesofidiflz'erenttone producing quality, a sleeve frictionally embracing;the'abutting ends'ofthe' hammer and the stub, means forturn-ingthehammer-rel.-

atively tosaid sleeve and means'on the 1 hammer and the sleeverfor.limiting the-..rela-- tive movement therebetweenaq In; testimony Vwhereof]; afiixmy signature. WILLIAM KLINE.

